Harness stop-motion for looms.



N0. 654,l72. Patented -luly 24, I900. G. MATHIEU.

HARNESS STOP MOTION FOR LOOMS.

(Application filed Apr. 3, 1000.).

3 SheetsS heet (No Model.)

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INVEHTQDF E, g I 4 No. 654,l72. Patented July 24, I900..

G. MATHIEU.

HARNESS STOP MOTION FOR LUOMS.

. (Appfication filed Apr. 3, 1900.) (No Model.) 3 Sheets-Sheet 2.

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No. s54,|72. Patented July 24, I900.

a. MATHIEU.

HARNESS STOP MOTION FOR LOOMS.

(Application filed Apr. 3, 1900.)

(No Model.) a sheets-sheet 3.

I 11 II' 0 c I I WIT JEEEEE: I V ||J\/E[\'TU v a a 761% Ef F\ I his)??? Qilm/zz I J lTE GEORGE MATHIEU, OF FALL RIVER, MASSACHUSETTS.

HARNESS STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent N0. 654,172, dated July 24, 1900.

Application filed April 3, 1900. Serial No. 11,323. (No model.)

To all whom it may concern:

Be it known that I, GEORGE MATHIEU, a citizen of the United States, residing in Fall River, in the county of Bristol and State of Massachusetts, have invented new and useful Improvements in Harness Stop-Motions for Looms, of which the following is a specification.

This invention relates to certain improvements whereby the stop-motion of a loom is operated through the medium of the sliding portion of the weft-fork box or frame when a break occurs in one of the straps of the harness, the nature of the invention being fully described below and illustrated in the accom panying drawings, in which- Figure 1 is a cross vertical section of a sufficient portion of a loom to illustrate the invention. Fig. 2 is a plan view, portions being broken out to illustrate parts of the contrivance. Fig. 3 is an enlarged cross vertical section.

Similar letters of reference indicate corresponding parts.

Ct (I. represent portions of the frame of a loom. bis the breast-beam; cl, the lay; e, the straps of the harness e; f, the levers or treadles; g, the tappets for operating the barness, and h the warp-threads. These are all constructed substantially as usual, and their operation is too well known to require description. 1

7c is the weft-fork lever, pivoted, as usual, in the frame operated by the cam Z.

-A represents the weft-fork in the sliding portion B of the box B.

C is a horizontally-disposed rocking shaft or frame supported at each end by one of a pair of jaws O O, constituting, in connection with bolts 0, clamps, whereby said rocking shaft is sustained by brackets D, supported by the frame. Rigidly secured at their front ends to this shaft 0 are bars E, which extend rearward from said shaft under the harness, as shown in Figs. 1 and 2, the rear portions of said bars being held normally in a substantially horizontal position by means of the springs n, which coil around the shaft 0, each spring having one end we caught around a bar E and the other end at caught under a por tion of the frame. Rigidly secured to one end of the shaft 0 is an arm F, bent into substantially the shape shown and pivotally connected at its upper end by a link H with the forked lever L, rigid on a rock-shaft L, Figs. 1 and 2, supported in cars r on the sliding portion B of the weft-fork box. Rigid on this rock-shaft between the ears is a notched or toothed segment N.

Should a strap 6 of the harness 6 break, the harness falls upon the bars E, bearing them down against the power of the springs n from the position indicated in Figs. 1 and 2 into that indicated in Fig. 3. This movement by means of the shaft or frame C swings up the arms F, which carries rearward the link H and swings down the forked lever L, which by means of the rock-shaft L swings the segment N down into the path of the upper end of a weft-fork lever A, as shown in Fig. 3. This lever by means of its cam Z then moves the portion 13 forward against one end of a bar or lever P, pivotally supported by the breast-beam, the other end of which lever.

engages the arm S of the shippinglever, whereby the machine is stopped in the ordinary manner. The shaft or frame 0 is provided centrally with an arm T, which serves by engagement with the frame to prevent the bars E from dropping too far. The segment N is provided with wings N for limiting the downward movement. Thus an ordinary stop-motion is operated instantly upon the breaking of one of the straps of the harness.

Having thus fully described my invention, what I claim,and desire to secure by Letters Patent, is-

In a harness stop-motion for looms, the weft-fork lever 7c and its operating mechanism; the weft-fork; the sliding portion B of the weft-fork box or frame; the engaging segment or dog N extending from a rock-shaft mounted on said portion B; the lever L rigid on said rock-shaft; the shaft or frame 0 mounted in the frame of the machine; the bars E extending from said shaft; springs disposed around the shaft or frame 0 and adapted to hold said bars normally with their mess to fall upon the arms E, down into engagement with the upper end of the weft-fork lever, substantially as described.

GEORGE MATHIEU.

rear ends under the harness; the lever F rigidly secured at one end to the frame or shaft 0 and extending up therefrom as described; and the link H connecting the upper ends of said arm F and lever L, whereby the segment or dog N is held normally raised and dropped when the breakage of a strap causes the har- Witnesses:

MAGUIRE GAGNE, ARMEL L. AUDET. 

